相依边网络中图统计序列经验分布的一致性

IF 1.4 3区 数学 Q2 STATISTICS & PROBABILITY
Jonathan R. Stewart
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引用次数: 0

摘要

应用统计网络分析的第一步通常是制作网络重要特征的总结图表。这些特征中的许多都采用了计算网络中已实现事件数量的图形统计序列的形式,例如度分布、边缘共享伙伴分布等等。在网络边相依的情况下,给出了图统计序列的经验分布在l∞范数上一致的条件。我们通过推导集中不等式来完成这个任务,该集中不等式限定了弱依赖条件下图统计量偏离期望值的概率。我们将集中不等式应用于图统计序列的经验分布,并在高概率的误差上推导出非渐近界。然后推广我们的非渐近结果,在选定的例子中几乎肯定地证明了一致收敛。我们通过实例、仿真研究和应用来说明理论结果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Consistency of empirical distributions of sequences of graph statistics in networks with dependent edges
One of the first steps in applications of statistical network analysis is frequently to produce summary charts of important features of the network. Many of these features take the form of sequences of graph statistics counting the number of realized events in the network, examples of which are degree distributions, edgewise shared partner distributions, and more. We provide conditions under which the empirical distributions of sequences of graph statistics are consistent in the -norm in settings where edges in the network are dependent. We accomplish this task by deriving concentration inequalities that bound probabilities of deviations of graph statistics from the expected value under weak dependence conditions. We apply our concentration inequalities to empirical distributions of sequences of graph statistics and derive non-asymptotic bounds on the -error which hold with high probability. Our non-asymptotic results are then extended to demonstrate uniform convergence almost surely in selected examples. We illustrate theoretical results through examples, simulation studies, and an application.
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来源期刊
Journal of Multivariate Analysis
Journal of Multivariate Analysis 数学-统计学与概率论
CiteScore
2.40
自引率
25.00%
发文量
108
审稿时长
74 days
期刊介绍: Founded in 1971, the Journal of Multivariate Analysis (JMVA) is the central venue for the publication of new, relevant methodology and particularly innovative applications pertaining to the analysis and interpretation of multidimensional data. The journal welcomes contributions to all aspects of multivariate data analysis and modeling, including cluster analysis, discriminant analysis, factor analysis, and multidimensional continuous or discrete distribution theory. Topics of current interest include, but are not limited to, inferential aspects of Copula modeling Functional data analysis Graphical modeling High-dimensional data analysis Image analysis Multivariate extreme-value theory Sparse modeling Spatial statistics.
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